I turn the key and nothing happens. Battery and starter fine what could it be?

Im guessing your pressing the clutch in when your turning the key, but make sure that ignition switch and relay are in good condition (thats where I would start!) As far as the brakes, make sure you have released the manual parking brake, if this is released, you may have to manually start checking brake components (calipers, pads/rotors, master cylinder, ex.)